<html>
    <body>
        <script type="text/javascript">
            function sortNumber(a, b) {
                return a - b;
            }
            var arr = new Array(6);
            arr[0] = "10";
            arr[1] = "5";
            arr[2] = "40";
            arr[3] = "25";
            arr[4] = "1000";
            arr[5] = "1";
            document.write(arr + "<br />");
            document.write(arr.sort(sortNumber));
        </script>
    </body>
</html>
